EP3745562B1 - Coil former with integrated contacting device - Google Patents

Coil former with integrated contacting device Download PDF

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Publication number
EP3745562B1
EP3745562B1 EP20169902.2A EP20169902A EP3745562B1 EP 3745562 B1 EP3745562 B1 EP 3745562B1 EP 20169902 A EP20169902 A EP 20169902A EP 3745562 B1 EP3745562 B1 EP 3745562B1
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EP
European Patent Office
Prior art keywords
winding
wire
fixation
section
winding wire
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EP20169902.2A
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German (de)
French (fr)
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EP3745562A1 (en
Inventor
Martin DEININGER
Martin Hertreiter
Frank Schlopakowski
Markus Weingart
Daniel Kreuzer
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Ebm Papst Landshut GmbH
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Ebm Papst Landshut GmbH
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Publication of EP3745562A1 publication Critical patent/EP3745562A1/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/325—Windings characterised by the shape, form or construction of the insulation for windings on salient poles, such as claw-shaped poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/06—Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/12—Machines characterised by the bobbins for supporting the windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
    • H02K2211/03—Machines characterised by circuit boards, e.g. pcb

Definitions

  • the invention relates to a coil former with an integrated contacting device, preferably for forming a winding wire contact on a printed circuit board.
  • the problem is that the wire end of a winding not only has to be fixed in the period after the winding process until contact with electronics, but also has to be done in a simple and reliable way with the electronics or circuit board in the installed state of the coil body got to.
  • a winding body for accommodating a winding of an electrical conductor to form a coil for an electrical machine, with a winding area that is formed by a winding carrier and two legs that delimit the winding area and are connected to the winding carrier.
  • Various measures are proposed in order to apply a compact winding to the winding body in order to arrange the winding body on a tooth of an electrical machine without play and in an operationally reliable manner.
  • a groove that is open toward the winding area is formed for receiving a winding end of the coil, the groove having an increasing groove depth toward the free end of the limb.
  • the winding wire can detach from the slot and to connect one wire end of the winding wire either has to be detached from the slot or an unprotected free wire end protrudes from the bobbin, which is also undesirable.
  • Winding bodies for accommodating a winding of an electrical winding wire to form a coil for an electrical machine are also at least known from the publications U.S. 2018/316242 A1 , JP 2013 212020 A , U.S. 2017/353063 A1 and JP 2009 303438 A known.
  • the invention is therefore based on the object of overcoming the aforementioned disadvantages and providing a simpler and more cost-effective solution that reliably holds and guides the winding wire and ensures a secure position of the winding wire for connecting to a printed circuit board or electronics.
  • a winding body for receiving a winding of an electrical winding wire to form a coil for an electrical machine according to claim 1 is proposed for this purpose.
  • the winding body has a winding area on a winding carrier and at least one winding wire holding device adjoining the winding area and connected to the winding carrier.
  • Each of the winding wire holding devices is intended to have a first wire fixation and a second wire fixation spaced apart in this area in the direction in which the winding wire runs, in order to fix a first winding wire section to the first wire fixation and to guide the winding wire from there to the second wire fixation and to fix it there with a second winding wire section .
  • each winding wire holding device has a window-like opening in the area between the respective first wire fixation and the respective second wire fixation of said winding wire holding device, through which the winding wire with the wire section between the respective first and second winding wire section can be guided or runs.
  • said wire section is fixed between the two fixations on the bobbin and is accessible for connection to a printed circuit board.
  • the first wire fixation e.g. a fixing pin
  • the first wire fixation is designed at the same time as a fastening means for positioning and/or fastening the winding body to corresponding recesses in a printed circuit board. This ensures that after the winding body has been mounted on a printed circuit board, the winding wire runs in the area between the first and second wire fixation directly above a soldering contact point or soldering pad on the printed circuit board and can be easily connected to the contact point on the printed circuit board.
  • the winding wire holding devices are therefore provided on a mounting face that is designed for mounting on a printed circuit board.
  • a straight line connection between the first wire fixation and the second wire fixation of each winding wire holding device defines the respective winding wire direction of travel of the winding wire in this area.
  • the first wire fixation is designed as a winding pin protruding from the winding body, on which the winding wire section can be fixed by forming at least one wire coil running around the winding pin.
  • this winding pin advantageously forms a mounting pin for plug-in mounting into corresponding openings in a printed circuit board.
  • a spacer element can therefore advantageously extend in the same axial direction of extent of the winding pin, which thereby determines the spacing of the winding wire in the area between the respective first and second wire fixations to the printed circuit board.
  • the second wire fixation is also a winding pin on which the second Winding wire section can be fixed by forming at least one running around the winding pin wire coil.
  • several windings can also be produced around the respective winding pin.
  • the second wire fixation is designed as a V-shaped wire clamping point that is open on one side and on which the second winding wire section can be fixed by clamping the winding wire.
  • each winding wire holding device forms an L-shaped or U-shaped bracket protruding from a flange area of the winding carrier, on which the second Wire fixation is formed. It is also advantageous if the respective bracket forms at least one web running parallel and transverse to the winding wire direction of the winding wire (in this area) and the second wire fixation is formed on the respective transverse web.
  • the two holding webs which are connected to one another via the transverse holding web and run parallel (to the winding wire direction of the winding wire in this area), then span a window-like recess over which the winding wire is guided.
  • a particularly good accessibility of the winding wire is achieved with a high stability at the same time by such a U-shaped window-like recess.
  • the second winding pin has an axial direction of extension that differs from the first winding pin, preferably an axial direction of extension that differs by approximately 90° from the axial direction of extension of the first winding pin.
  • An advantageous embodiment of the invention is also a winding body, wherein the winding carrier of the winding body is wound with the winding wire and this is fixed at least with a first winding wire section to the first wire fixation and with the second winding wire section to the second wire fixation of the winding wire holding device and more preferably both winding wire ends of the Winding wire are each attached to such a winding wire holding device.
  • Another advantageous aspect of the present invention relates to a unit consisting of a printed circuit board and a winding body mounted on the printed circuit board, in which winding wire sections run between two wire fixations of a winding wire holding device directly above a contact point on the printed circuit board and are particularly preferably electrically connected to it.
  • one or the respective wire fixation is designed with a spaced-apart double-wire installation or means for double-wire installation, which is designed in such a way that an additional wire loop is formed, which enables a second connection process, soldering process or welding process that is necessary in the event of repairs.
  • Another aspect of the present invention relates to the method for
  • the invention is based on exemplary embodiments according to the Figures 1 to 4 described in more detail, with the same reference numbers indicating the same structural and/or functional features.
  • FIG. 1 to 3 a first exemplary embodiment of a winding body 1 according to the invention for receiving a winding of an electrical winding wire 3 to form a coil for an electrical machine is shown for this purpose.
  • the winding body 1 has a winding area 10 on a winding support 11 and three winding wire holding devices 20 adjoining the winding area 10 and connected to the winding support 11.
  • the winding wire holding devices 20 are integrally connected to the respective flange area 15.
  • Each of the three winding wire holding devices 20 shown as an example has a first wire fixation 21 and a second wire fixation 22 that is spatially spaced apart therefrom in a winding wire run direction W.
  • a first winding wire section 3a is fixed to the first wire fixation 21 and from there the winding wire 3 is guided to the second wire fixation 22 and fixed to this with a second winding wire section 3b.
  • Both wire fixations 21, 22 are designed as winding pins or winding pins, the first winding pin 21, as in FIG figure 3 recognizable, protrudes laterally upwards from the winding wire holding device 20 and is guided through an opening in the printed circuit board L.
  • the first winding pin 21 therefore serves not only to fix the wire but also as a fastening means for positioning the winding body on corresponding recesses in the printed circuit board L.
  • the respective second winding pin 22 of the winding wire holding device 20 protrudes laterally in a direction parallel to the printed circuit board plane.
  • Spacer elements 24 are also provided on the winding wire holding devices 20 in order to ensure a defined distance from the printed circuit board.
  • the design of the winding wire holding device 20 ensures that the winding wire runs in a straight line between the first wire fixation 21 and the second wire fixation 22 of the winding wire 3 in this area, specifically between the window-like opening and the contact point K of the printed circuit board L.
  • FIG 4 an alternative embodiment of a winding wire holding device 20 of a winding body 1 is shown.
  • the second wire fixation 22 shown here was designed as a V-shaped wire clamping point open on one side, to which the second winding wire section 3b is fixed by clamping the winding wire 3 .
  • the winding wire holding devices 20 are formed by a U-shaped bracket 30 protruding from a flange area 12 of the winding carrier 11, with the respective second wire fixation 22 being formed on one web 30b.
  • the U-shaped bracket 30 consists of two webs 30a, 30b running parallel and one transverse to the winding wire run direction W of the winding wire 3.
  • the respective window-like opening 33 of the respective winding wire holding device 20 is formed between the flange area 12 of the winding carrier 11 and the U-shaped bracket 30 . This is located in the mounting position of the winding body 1 on the printed circuit board L above a contact point K, so that the winding wire 3 can be connected to the contact point.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Coils Or Transformers For Communication (AREA)

Description

Die Erfindung betrifft einen Spulenkörper mit einer integrierten Kontaktiervorrichtung, vorzugsweise zur Ausbildung einer Wickeldrahtkontaktierung an eine Leiterplatte.The invention relates to a coil former with an integrated contacting device, preferably for forming a winding wire contact on a printed circuit board.

Aus dem Stand der Technik sind diverse Spulenkörper und Wickelkörper zur Aufnahme einer Wicklung eines elektrischen Leiters zur Bildung einer Spule für eine elektrische Maschine bekannt. Das jeweilige Ende des Wickeldrahtes wird dabei auf unterschiedlichste Weise mit einem Kontakt auf einer Leiterplatte elektrisch kontaktiert und verbunden.Various coil formers and winding formers for receiving a winding of an electrical conductor to form a coil for an electrical machine are known from the prior art. The respective end of the winding wire is electrically contacted and connected to a contact on a printed circuit board in a wide variety of ways.

Auf die im Stand der Technik umfangreich beschriebenen Verfahren, wie Schneidklemmverbindungen mit Kontaktfedern zur Kontaktierung einer Lötfahne, Schneidklemmverbinder mit einem Einlötstift oder einer Einpresszone, Verschweißen des Drahtes mit einem Leiterplattenkontakt oder alternativ auch Direktverbindungen wie dem Löten oder Verschweißen des Wickeldrahtendes auf der Leiterplatte bzw. der Motorelektronik. Teilweise werden auch Direktstecksysteme oder Steckverbinder verwendet, was zusätzliche Bauteile und eine aufwändige Montage erfordert.The methods extensively described in the prior art, such as insulation displacement connections with contact springs for contacting a solder lug, Insulation displacement connectors with a soldering pin or a press-in zone, welding the wire to a circuit board contact or alternatively direct connections such as soldering or welding the end of the winding wire to the circuit board or the motor electronics. In some cases, direct plug-in systems or connectors are also used, which requires additional components and complex assembly.

Grundsätzlich besteht allerdings das Problem bereits darin, dass das Drahtende einer Wicklung in der Zeitspanne nach dem Wickelvorgang bis zur Kontaktierung mit einer Elektronik nicht nur fixiert werden muss, sondern auch auf einfache und zuverlässige Weise mit der Elektronik oder Leiterplatte im montierten Zustand des Spulenkörpers bewerkstelligt werden muss.In principle, however, the problem is that the wire end of a winding not only has to be fixed in the period after the winding process until contact with electronics, but also has to be done in a simple and reliable way with the electronics or circuit board in the installed state of the coil body got to.

In der DE 10 2006 021903 A1 wird ein Wickelkörper zur Aufnahme einer Wicklung eines elektrischen Leiters zur Bildung einer Spule für eine elektrische Maschine beschrieben mit einem Wickelbereich, der durch einen Wickelträger und zwei den Wickelbereich begrenzende und mit dem Wickelträger verbundene Schenkel gebildet ist. Es werden verschiedene Maßnahmen vorgeschlagen, um an dem Wickelkörper eine kompakte Wicklung aufzubringen, um den Wickelkörper spielfrei und betriebssicher an einem Zahn einer elektrischen Maschine anzuordnen. Dabei wird zumindest in einem der Schenkel eine zum Wickelbereich offene Nut zur Aufnahme eines Wicklungsendes der Spule ausgebildet, wobei die Nut zum freien Ende des Schenkels eine zunehmende Nuttiefe aufweist.In the DE 10 2006 021903 A1 describes a winding body for accommodating a winding of an electrical conductor to form a coil for an electrical machine, with a winding area that is formed by a winding carrier and two legs that delimit the winding area and are connected to the winding carrier. Various measures are proposed in order to apply a compact winding to the winding body in order to arrange the winding body on a tooth of an electrical machine without play and in an operationally reliable manner. In this case, at least in one of the limbs, a groove that is open toward the winding area is formed for receiving a winding end of the coil, the groove having an increasing groove depth toward the free end of the limb.

Nachteilig ist dabei, dass sich einerseits der Wickeldraht aus der Nut lösen kann und zum Verbinden eines Drahtendes der Wickeldraht entweder aus der Nut gelöst werden muss oder ein ungeschütztes freies Drahtende von dem Spulenkörper weg steht, was ebenfalls nicht erwünscht ist.The disadvantage here is that on the one hand the winding wire can detach from the slot and to connect one wire end of the winding wire either has to be detached from the slot or an unprotected free wire end protrudes from the bobbin, which is also undesirable.

Wickelkörper zur Aufnahme einer Wicklung eines elektrischen Wickeldrahtes zur Bildung einer Spule für eine elektrische Maschine sind ferner zumindest aus den Veröffentlichungen US 2018/316242 A1 , JP 2013 212020 A , US 2017/353063 A1 und JP 2009 303438 A bekannt.Winding bodies for accommodating a winding of an electrical winding wire to form a coil for an electrical machine are also at least known from the publications U.S. 2018/316242 A1 , JP 2013 212020 A , U.S. 2017/353063 A1 and JP 2009 303438 A known.

Der Erfindung liegt deshalb die Aufgabe zugrunde, vorbesagte Nachteile zu überwinden und eine einfachere und kostengünstig realisierbare Lösung bereit zu stellen, die zuverlässig den Wickeldraht hält und führt und eine positionssichere Lage des Wickeldrahtes zum Verbindern mit einer Leiterplatte oder Elektronik gewährleistet.The invention is therefore based on the object of overcoming the aforementioned disadvantages and providing a simpler and more cost-effective solution that reliably holds and guides the winding wire and ensures a secure position of the winding wire for connecting to a printed circuit board or electronics.

Diese Aufgabe wird durch die Merkmalskombination gemäß Patentanspruch 1 gelöst.This object is achieved by the combination of features according to claim 1.

Erfindungsgemäß wird hierzu ein Wickelkörper zur Aufnahme einer Wicklung eines elektrischen Wickeldrahtes zur Bildung einer Spule für eine elektrische Maschine gemäß Anspruch 1 vorgeschlagen. Der Wickelkörper besitzt einen Wickelbereich auf einem Wickelträger und wenigstens einen an den Wickelbereich angrenzende und mit dem Wickelträger verbundene Wickeldrahthaltevorrichtungen.According to the invention, a winding body for receiving a winding of an electrical winding wire to form a coil for an electrical machine according to claim 1 is proposed for this purpose. The winding body has a winding area on a winding carrier and at least one winding wire holding device adjoining the winding area and connected to the winding carrier.

Jeder der Wickeldrahthaltevorrichtungen besitzt bestimmungsgemäß eine erste Drahtfixierung und eine zweite in einer Wickeldrahtverlaufsrichtung in diesem Bereich dazu beabstandete Drahtfixierung, um einen ersten Wickeldrahtabschnitt an der ersten Drahtfixierung zu Fixieren und den Wickeldraht von dort zur zweiten Drahtfixierung zu führen und an dieser mit einem zweiten Wickeldrahtabschnitt zu fixieren.Each of the winding wire holding devices is intended to have a first wire fixation and a second wire fixation spaced apart in this area in the direction in which the winding wire runs, in order to fix a first winding wire section to the first wire fixation and to guide the winding wire from there to the second wire fixation and to fix it there with a second winding wire section .

Erfindungsgemäß besitzt jede Wickeldrahthaltevorrichtung im Bereich zwischen der jeweils ersten Drahtfixierung und der jeweils zweiten Drahtfixierung der besagten Wickeldrahthaltevorrichtung eine fensterartige Öffnung, über die der Wickeldraht mit dem Drahtabschnitt zwischen dem jeweils ersten und zweiten Wickeldrahtabschnitt hinweg führbar ist bzw. verläuft. Auf diese Weise ist der besagte Drahtabschnitt zwischen den beiden Fixierungen am Wickelkörper fixiert und zugänglich zur Verbindung mit einer Leiterplatte.According to the invention, each winding wire holding device has a window-like opening in the area between the respective first wire fixation and the respective second wire fixation of said winding wire holding device, through which the winding wire with the wire section between the respective first and second winding wire section can be guided or runs. In this way, said wire section is fixed between the two fixations on the bobbin and is accessible for connection to a printed circuit board.

Erfindungsgemäß ist die erste Drahtfixierung (z. B. ein Fixierpin) gleichzeitig als Befestigungsmittel zur Positionierung und/oder Befestigung des Wickelkörpers an korrespondierenden Ausnehmungen einer Leiterplatte ausgebildet. Auf diese Weise wird sichergestellt, dass nach der Montage des Wickelkörpers auf einer Leiterplatte der Wickeldraht in dem Bereich zwischen der ersten und zweiten Drahtfixierung unmittelbar oberhalb einer Lötkontaktstelle oder Lötpads der Leiterplatte verläuft und auf einfache Weise mit der Kontaktstelle der Leiterplatte verbunden werden kann.According to the invention, the first wire fixation (e.g. a fixing pin) is designed at the same time as a fastening means for positioning and/or fastening the winding body to corresponding recesses in a printed circuit board. This ensures that after the winding body has been mounted on a printed circuit board, the winding wire runs in the area between the first and second wire fixation directly above a soldering contact point or soldering pad on the printed circuit board and can be easily connected to the contact point on the printed circuit board.

In einer besonders vorteilhaften Ausgestaltung sind daher die Wickeldrahthaltevorrichtungen an einer Montagestirnseite, die ausgebildet ist zur Montage an einer Leiterplatte vorgesehen.In a particularly advantageous embodiment, the winding wire holding devices are therefore provided on a mounting face that is designed for mounting on a printed circuit board.

Erfindungsgemäß definiert eine geradlinige Verbindung zwischen der ersten Drahtfixierung und der zweiten Drahtfixierung jeder Wickeldrahthaltevorrichtung die jeweilige Wickeldrahtverlaufsrichtung des Wickeldrahts in diesem Bereich.According to the invention, a straight line connection between the first wire fixation and the second wire fixation of each winding wire holding device defines the respective winding wire direction of travel of the winding wire in this area.

Weiter vorteilhaft ist es, wenn die erste Drahtfixierung als ein vom Wickelkörper wegstehender Wickelstift ausgebildet ist, an dem der Wickeldrahtabschnitt durch Ausbildung wenigstens eines um den Wickelstift herumlaufenden Drahtwickels fixiert werden kann. Dieser Wickelstift bildet mit Vorteil gleichzeitig einen Montagepin zur Einsteckmontage in entsprechende Öffnungen einer Leiterplatte.It is also advantageous if the first wire fixation is designed as a winding pin protruding from the winding body, on which the winding wire section can be fixed by forming at least one wire coil running around the winding pin. At the same time, this winding pin advantageously forms a mounting pin for plug-in mounting into corresponding openings in a printed circuit board.

Mit Vorteil kann sich daher in die gleiche axiale Erstreckungsrichtung des Wickelstifts ein Distanzelement erstrecken, welches dadurch den Abstand des Wickeldrahtes im Bereich zwischen den jeweiligen ersten und zweiten Drahtfixierungen zur Leiterplatte bestimmt.A spacer element can therefore advantageously extend in the same axial direction of extent of the winding pin, which thereby determines the spacing of the winding wire in the area between the respective first and second wire fixations to the printed circuit board.

In einer ebenfalls vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die zweite Drahtfixierung ebenfalls ein Wickelstift ist, an dem der zweite Wickeldrahtabschnitt durch Ausbildung wenigstens eines um den Wickelstift herumlaufenden Drahtwickels fixiert werden kann. Mit Vorteil können auch mehrere Wickel um den jeweiligen Wickelstift hergestellt werden.In a likewise advantageous embodiment of the invention it is provided that the second wire fixation is also a winding pin on which the second Winding wire section can be fixed by forming at least one running around the winding pin wire coil. Advantageously, several windings can also be produced around the respective winding pin.

In einer alternativen Ausgestaltung der Erfindung ist vorgesehen, dass die zweite Drahtfixierung als eine V-förmige einseitig offene Drahtklemmstelle ausgebildet ist, an dem der zweite Wickeldrahtabschnitt durch Einklemmen des Wickeldrahtes fixiert werden kann.In an alternative embodiment of the invention, it is provided that the second wire fixation is designed as a V-shaped wire clamping point that is open on one side and on which the second winding wire section can be fixed by clamping the winding wire.

Um die Zugänglichkeit zum Verbinden des Wickeldrahtes zwischen den beiden Fixerstellen und der Leiterplatte zu optimieren, ist in vorteilhafter Weise vorgesehen, dass jede Wickeldrahthaltevorrichtung einen sich von einem Flanschbereich des Wickelträger abstehenden L-förmigen oder U-förmigen Bügel ausbildet an dem die beschriebene, jeweils zweite Drahtfixierung ausgebildet ist. Weiter vorteilhaft ist es dabei, wenn der jeweilige Bügel wenigstens je einen parallel und quer zur Wickeldrahtverlaufsrichtung des Wickeldrahts (in diesem Bereich) verlaufenden Steg ausbildet und die zweite Drahtfixierung an dem jeweils quer verlaufenden Steg ausgebildet ist. Durch einen insbesondere U-förmig ausgebildeten Haltebügel spannen dann die zwei über den quer verlaufender Haltesteg miteinander verbundene parallel (zur Wickeldrahtverlaufsrichtung des Wickeldrahts in diesem Bereich) verlaufende Haltestege eine fensterartige Aussparung auf, über die der Wickeldraht geführt ist. Durch eine solche U-förmige fensterartige Aussparung wird eine besonders gute Zugänglichkeit des Wickeldrahtes bei gleichzeitig hoher Stabilität erzielt.In order to optimize accessibility for connecting the winding wire between the two fixing points and the printed circuit board, it is advantageously provided that each winding wire holding device forms an L-shaped or U-shaped bracket protruding from a flange area of the winding carrier, on which the second Wire fixation is formed. It is also advantageous if the respective bracket forms at least one web running parallel and transverse to the winding wire direction of the winding wire (in this area) and the second wire fixation is formed on the respective transverse web. The two holding webs, which are connected to one another via the transverse holding web and run parallel (to the winding wire direction of the winding wire in this area), then span a window-like recess over which the winding wire is guided. A particularly good accessibility of the winding wire is achieved with a high stability at the same time by such a U-shaped window-like recess.

In einer weiteren vorteilhaften Ausgestaltung ist vorgesehen, dass der zweite Wickelstift eine zum ersten Wickelstift abweichende axialen Erstreckungsrichtung aufweist, vorzugsweise eine um etwa 90° gegenüber der axialen Erstreckungsrichtung des ersten Wickelstiftes verschiedene axiale Erstreckungsrichtung.In a further advantageous embodiment, it is provided that the second winding pin has an axial direction of extension that differs from the first winding pin, preferably an axial direction of extension that differs by approximately 90° from the axial direction of extension of the first winding pin.

Eine vorteilhafte Ausgestaltung der Erfindung ist auch ein Wickelkörper, wobei der Wickelträger des Wickelkörpers mit dem Wickeldraht bewickelt ist und dieser zumindest mit einem ersten Wickeldrahtabschnitt an der ersten Drahtfixierung und mit dem zweiten Wickeldrahtabschnitt an der zweiten Drahtfixierung der Wickeldrahthaltevorrichtung befestigt ist und weiter vorzugsweise beide Wickeldrahtenden des Wickeldrahtes jeweils an einer solchen Wickeldrahthaltevorrichtung befestigt sind.An advantageous embodiment of the invention is also a winding body, wherein the winding carrier of the winding body is wound with the winding wire and this is fixed at least with a first winding wire section to the first wire fixation and with the second winding wire section to the second wire fixation of the winding wire holding device and more preferably both winding wire ends of the Winding wire are each attached to such a winding wire holding device.

Ein weiterer vorteilhafter Aspekt der vorliegenden Erfindung betrifft eine Einheit bestehend aus einer Leiterplatte und einen an der Leiterplatte montierten Wickelkörper, bei dem jeweils Wickeldrahtabschnitte zwischen je zwei Drahtfixierungen einer Wickeldrahthaltevorrichtung unmittelbar oberhalb einer Kontaktierungsstelle der Leiterplatte verlaufen und besonders bevorzugt mit dieser elektrisch kontaktierend verbunden sind.Another advantageous aspect of the present invention relates to a unit consisting of a printed circuit board and a winding body mounted on the printed circuit board, in which winding wire sections run between two wire fixations of a winding wire holding device directly above a contact point on the printed circuit board and are particularly preferably electrically connected to it.

Weiter vorteilhaft ist es, wenn eine oder die jeweilige Drahtfixierung mit einer beabstandeten Doppeldrahtverlegung oder Mittel zur Doppeldrahtverlegung ausgebildet ist, die derart ausgeführt ist, dass eine zusätzliche Drahtschleife gebildet wird, die einen im Reparaturfall notwendigen zweiten Verbindungsvorgang, Lötvorgang oder Schweißvorgang ermöglicht.It is also advantageous if one or the respective wire fixation is designed with a spaced-apart double-wire installation or means for double-wire installation, which is designed in such a way that an additional wire loop is formed, which enables a second connection process, soldering process or welding process that is necessary in the event of repairs.

Ein weiterer Aspekt der vorliegenden Erfindung betrifft das Verfahren zumAnother aspect of the present invention relates to the method for

Befestigen eines Wickeldrahtendes oder Wickeldrahtabschnittes eines Wickeldrahtes an einem Wickelkörper nach den Merkmalen gemäß Patentanspruch 10 mit den folgendenFastening a winding wire end or winding wire section of a winding wire to a winding body according to the features of patent claim 10 with the following

Schritten:

  1. a. Fixieren des Wickeldrahtabschnittes an der ersten Drahtfixierung indem wenigstens ein Drahtwickel um die Drahtfixierung herum gebildet wird und
  2. b. Aufwendung einer axialen Zugkraft auf den Wickeldraht in die Wickeldrahtverlaufsrichtung zur zweiten Drahtfixierung und
  3. c. Fixieren des zweiten Wickeldrahtabschnittes an der zweiten Drahtfixierung, derart, dass der Wickeldraht zwischen der ersten und zweiten Drahtfixierung gespannt oder zumindest geradlinig verläuft oder in einer für die Drahtfixierung geeigneten Weise.
steps:
  1. a. Fixing the winding wire section to the first wire fixation by at least one wire wrap around the wire fixation is formed around and
  2. b. Application of an axial tensile force on the winding wire in the direction of the winding wire for the second wire fixation and
  3. c. Fixing the second winding wire section to the second wire fixation in such a way that the winding wire runs tautly or at least in a straight line between the first and second wire fixation or in a manner suitable for the wire fixation.

Andere vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet bzw. werden nachstehend zusammen mit der Beschreibung der bevorzugten Ausführung der Erfindung anhand der Figuren näher dargestellt.Other advantageous developments of the invention are characterized in the dependent claims or are presented in more detail below together with the description of the preferred embodiment of the invention with reference to the figures.

Es zeigt:

Fig. 1
eine schematische Konzeptzeichnung der Realisierung eines ersten Ausführungsbeispiels eines erfindungsgemäßen Wickel-körpers,
Fig. 2
eine Ansicht ähnlich der Figur in einer auf einer Leiterplatte montierten Position,
Fig. 3
eine Seitenansicht auf eine Anordnung gemäß der Figur 2 und
Fig. 4
eine alternative Ausführungsform einer Wickeldrahthaltevorrichtung eines Wickelkörpers.
It shows:
1
a schematic concept drawing of the realization of a first exemplary embodiment of a winding body according to the invention,
2
a view similar to the figure in a position mounted on a circuit board,
3
a side view of an arrangement according to the figure 2 and
4
an alternative embodiment of a winding wire holding device of a bobbin.

Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen gemäß den Figuren 1 bis 4 näher beschrieben, wobei gleiche Bezugszeichen auf gleiche strukturelle und/oder funktionale Merkmale hinweisen.The invention is based on exemplary embodiments according to the Figures 1 to 4 described in more detail, with the same reference numbers indicating the same structural and/or functional features.

In den Figuren 1 bis 3 ist hierzu ein erstes Ausführungsbeispiel eines erfindungsgemäßen Wickelkörpers 1 zur Aufnahme einer Wicklung eines elektrischen Wickeldrahtes 3 zur Bildung einer Spule für eine elektrische Maschine gezeigt.In the Figures 1 to 3 a first exemplary embodiment of a winding body 1 according to the invention for receiving a winding of an electrical winding wire 3 to form a coil for an electrical machine is shown for this purpose.

Der Wickelkörpers 1 besitzt einen Wickelbereich 10 auf einem Wickelträger 11 und drei sich an den Wickelbereich 10 angrenzende und mit dem Wickelträger 11 verbundene Wickeldrahthaltevorrichtungen 20. Die Wickeldrahthaltevorrichtungen 20 sind mit dem jeweiligen Flanschbereich 15 integral verbunden.The winding body 1 has a winding area 10 on a winding support 11 and three winding wire holding devices 20 adjoining the winding area 10 and connected to the winding support 11. The winding wire holding devices 20 are integrally connected to the respective flange area 15.

Jeder der drei exemplarisch gezeigten Wickeldrahthaltevorrichtungen 20 besitzt eine erste Drahtfixierung 21 und eine zweite dazu in einer Wickeldrahtverlaufsrichtung W räumlich beabstandete Drahtfixierung 22. An der ersten Drahtfixierung 21 wird ein jeweils erste Wickeldrahtabschnitt 3a fixiert und von dort wird der Wickeldraht 3 zur zweiten Drahtfixierung 22 geführt und an dieser mit einem zweiten Wickeldrahtabschnitt 3b fixiert.Each of the three winding wire holding devices 20 shown as an example has a first wire fixation 21 and a second wire fixation 22 that is spatially spaced apart therefrom in a winding wire run direction W. A first winding wire section 3a is fixed to the first wire fixation 21 and from there the winding wire 3 is guided to the second wire fixation 22 and fixed to this with a second winding wire section 3b.

Beide Drahtfixierungen 21, 22 sind als Wickelstifte bzw. Wickelpins ausgebildet, wobei der erste Wickelstift 21, wie in der Figur 3 erkennbar, seitlich nach oben von der Wickeldrahthaltevorrichtung 20 hervorsteht und durch eine Öffnung in der Leiterplatte L geführt ist. Der erste Wickelstift 21 dient in diesem Ausführungsbeispiel demzufolge neben der Drahtfixierung gleichzeitig als Befestigungsmittel zur Positionierung des Wickelkörpers an korrespondierenden Ausnehmungen der Leiterplatte L.Both wire fixations 21, 22 are designed as winding pins or winding pins, the first winding pin 21, as in FIG figure 3 recognizable, protrudes laterally upwards from the winding wire holding device 20 and is guided through an opening in the printed circuit board L. In this exemplary embodiment, the first winding pin 21 therefore serves not only to fix the wire but also as a fastening means for positioning the winding body on corresponding recesses in the printed circuit board L.

Der jeweils zweite Wickelstift 22 der Wickeldrahthaltevorrichtung 20 ragt seitlich in einer Richtung parallel zur Leiterplattenebene weg. An den Wickeldrahthaltevorrichtungen 20 sind ferner Distanzelemente 24 vorgesehen, um einen definierten Abstand zur Leiterplatte sicherzustellen.The respective second winding pin 22 of the winding wire holding device 20 protrudes laterally in a direction parallel to the printed circuit board plane. Spacer elements 24 are also provided on the winding wire holding devices 20 in order to ensure a defined distance from the printed circuit board.

Wie in der Figur 2 ersichtlich, wird durch die Konzeption der Wickeldrahthaltevorrichtung 20 ein geradliniger Wickeldrahtverlauf zwischen der ersten Drahtfixierung 21 und der zweiten Drahtfixierung 22 des Wickeldrahts 3 in diesem Bereich realisiert und zwar jeweils zwischen der fensterartigen Öffnung und der Kontaktstelle K der Leiterplatte L.Like in the figure 2 As can be seen, the design of the winding wire holding device 20 ensures that the winding wire runs in a straight line between the first wire fixation 21 and the second wire fixation 22 of the winding wire 3 in this area, specifically between the window-like opening and the contact point K of the printed circuit board L.

In der Figur 4 ist eine alternative Ausführungsform einer Wickeldrahthaltevorrichtung 20 eines Wickelkörpers 1 gezeigt. Die hier gezeigte zweite Drahtfixierung 22 wurde als eine V-förmige einseitig offene Drahtklemmstelle ausgeführt, an dem der zweite Wickeldrahtabschnitt 3b durch Einklemmen des Wickeldrahtes 3 fixiert ist.In the figure 4 an alternative embodiment of a winding wire holding device 20 of a winding body 1 is shown. The second wire fixation 22 shown here was designed as a V-shaped wire clamping point open on one side, to which the second winding wire section 3b is fixed by clamping the winding wire 3 .

Bei beiden Ausführungsformen sind die Wickeldrahthaltevorrichtungen 20 durch einen sich von einem Flanschbereich 12 des Wickelträgers 11 abstehenden U-förmigen Bügel 30 gebildet, wobei an dem einen Steg 30b die jeweils zweite Drahtfixierung 22 ausgebildet ist. Der U-förmige Bügel 30 besteht aus je zwei parallel und einem quer zur Wickeldrahtverlaufsrichtung W des Wickeldrahts 3 verlaufenden Stegen 30a, 30b. Zwischen dem Flanschbreich 12 des Wickelträgers 11 und dem U-förmigen Bügel 30 wird die jeweilige fensterartige Öffnung 33 der jeweiligen Wickeldrahthaltevorrichtung 20 gebildet. Diese befindet sich in der Montageposition des Wickelkörpers 1 auf der Leiterplatte L jeweils oberhalb einer Kontaktstelle K, so dass der Wickeldraht 3 mit der Kontaktstelle verbunden werden kann.In both embodiments, the winding wire holding devices 20 are formed by a U-shaped bracket 30 protruding from a flange area 12 of the winding carrier 11, with the respective second wire fixation 22 being formed on one web 30b. The U-shaped bracket 30 consists of two webs 30a, 30b running parallel and one transverse to the winding wire run direction W of the winding wire 3. The respective window-like opening 33 of the respective winding wire holding device 20 is formed between the flange area 12 of the winding carrier 11 and the U-shaped bracket 30 . This is located in the mounting position of the winding body 1 on the printed circuit board L above a contact point K, so that the winding wire 3 can be connected to the contact point.

Die Erfindung beschränkt sich in ihrer Ausführung nicht auf die vorstehend angegebenen bevorzugten Ausführungsbeispiele. Vielmehr ist eine Anzahl von Varianten entsprechend der beigefügten Ansprüche möglich.The implementation of the invention is not limited to the preferred exemplary embodiments given above. On the contrary, a number of variants are possible according to the appended claims.

Claims (10)

  1. A winding body (1) for receiving a winding of an electric winding wire (3) for forming a coil for an electric machine, with a winding region (10) which is formed by a winding support (11) and at least one winding wire holding device (20) adjoining the winding region (10) and connected to the winding support (11), wherein each winding wire holding device (20) comprises a first wire fixation (21) and a second wire fixation (22) spaced therefrom in a winding wire direction (W), in order to fix a first winding wire section (3a) on the first wire fixation (21) and lead the winding wire (3) from there to the second wire fixation (22)
    and fix it on said second wire fixation with a second wire winding wire section (3b),
    characterized in that the first wire fixation (21) at the same time forms a fastening means for positioning and/or fastening the winding body (1) on corresponding recesses of a circuit board (L),
    wherein a straight connection between the first wire fixation (21) and the second wire fixation (22) defines the winding wire direction (W) of the winding wire (3) in this region,
    and wherein each winding wire holding device (20) in the region between the respective first wire fixation (21) and the respective second wire fixation (22) comprises a window-like opening or recess, over which the winding wire (3) runs with a wire section between the respective first and second winding wire sections (3a, 3b), whereby the wire section between the first and second wire fixations (21, 22) is fixed on the winding body (1) and is accessible for the connection to the circuit board (L).
  2. The winding body (1) according to claim 1, characterized in that the first wire fixation (21) is designed as a first winding pin (21) protruding from the winding body (1), on which winding pin the first winding wire section (3a) can be fixed by forming at least one wire winding running around the first winding pin (21).
  3. The winding body (1) according to claim 1 or 2, characterized in that the second wire fixation (22) is designed as a second winding pin, on which the second winding wire section (3b) can be fixed by forming at least one wire winding running around the second winding pin (22).
  4. The winding body (1) according to claim 1 or 2, characterized in that the second wire fixation (22) is designed as a V-shaped wire clamping site which is open on one side, on which site the second winding wire section (3b) can be fixed by clamping the winding wire (3).
  5. The winding body (1) according to any one of the preceding claims, characterized in that each winding wire holding device (20) forms an L-shaped or U-shaped bracket (30) protruding from a flange region (12) of the winding support (11), on which bracket the respective second wire fixation (22) is formed.
  6. The winding body (1) according to claim 5, characterized in that the bracket (30) forms at least one respective first web (30a) or second web (30b) running parallel or transversely with respect to the winding wire direction (W) of the winding wire (3), and the second wire fixation (22) is formed on the transversely extending second web (30b).
  7. The winding body (1) according to any one of the preceding claims and claim 2, characterized in that the second winding pin (22) has an axial direction deviating with respect to that of the first winding pin (21), preferably an axial direction deviating by approximately 90° with respect to the axial direction of the first winding pin (21).
  8. The winding body (1) according to any one of the preceding claims, characterized in that the winding support (11) of the winding body (1) is wound with the winding wire (3), said winding wire is fastened at least with the first winding wire section (3a) on the first wire fixation (21) and with the second winding wire section (3b) on the second wire fixation (22) of the winding wire holding device (20).
  9. The winding body (1) according to any one of the preceding claims, characterized in that the wire fixation is formed using a spaced double wire laying or means for double wire laying, which is designed so that an additional wire loop is formed, which, in case of repair, enables a necessary second connection process, soldering process or welding process.
  10. A method for fastening a winding wire end or a winding wire section of a winding wire (3) on a winding body (1) according to any one of the preceding claims, with the following steps:
    a. fixing a first winding wire section (3a) on a first wire fixation (21) in that at least one wire winding is formed around the first wire fixation (21), and
    b. applying an axial tensile force to the winding wire (3) in the winding wire direction (W) of a second wire fixation (22), and
    c. fixing a second winding wire section (3b) on a second wire fixation (22), so that the winding wire (3) is stretched between the first and second wire fixations (21, 22) or runs at least in a straight line or in a manner suitable for the wire fixation.
EP20169902.2A 2019-05-27 2020-04-16 Coil former with integrated contacting device Active EP3745562B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019114057.9A DE102019114057A1 (en) 2019-05-27 2019-05-27 Bobbin with integrated contacting device

Publications (2)

Publication Number Publication Date
EP3745562A1 EP3745562A1 (en) 2020-12-02
EP3745562B1 true EP3745562B1 (en) 2022-11-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20169902.2A Active EP3745562B1 (en) 2019-05-27 2020-04-16 Coil former with integrated contacting device

Country Status (3)

Country Link
EP (1) EP3745562B1 (en)
CN (1) CN210517934U (en)
DE (1) DE102019114057A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148902A1 (en) * 1981-12-10 1983-06-23 Standard Elektrik Lorenz Ag, 7000 Stuttgart Coil former suitable for automatons
DE102006021903A1 (en) * 2006-05-11 2007-11-22 Zf Friedrichshafen Ag Winding body for receiving winding of electrical conductor, has winding area formed by winding carrier and legs that are connected with winding carrier, where winding carrier has profile for guiding electrical conductor
JP4841590B2 (en) * 2008-06-17 2011-12-21 三菱電機株式会社 Motor stator, motor, blower, pump, and air conditioner
JP5959270B2 (en) * 2012-03-30 2016-08-02 三菱電機株式会社 Electric motor stator, blower motor and air conditioner
DE102014213025A1 (en) * 2014-07-04 2016-01-07 Zf Friedrichshafen Ag Coil for an electric machine
GB2533154B (en) * 2014-12-12 2017-06-07 Protean Electric Ltd A coil winding arrangement
CN108141095A (en) * 2015-09-02 2018-06-08 日立汽车系统工程株式会社 Brushless motor
US20190027307A1 (en) * 2017-07-18 2019-01-24 Wen Liang Wang Method of winding a stator core to prevent breakage of wire between pin and winding groove

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DE102019114057A1 (en) 2020-12-03
EP3745562A1 (en) 2020-12-02

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